libstdc++: Define __cpp_lib_execution feature test macro
This macro has never been defined by libstdc++, despite supporting the parallel algorithms. It should have a different value for C++17 and C++20, because P1001R2 should not be supported in C++17, but unsequenced_policy is defined for C++17 (see PR p4702). * include/std/execution (__cpp_lib_execution): Define to indicate support for P0024R2 and P1001R2. * include/std/version (__cpp_lib_execution): Define. * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro defined by <algorithm>, move other tests to new tests ... * testsuite/25_algorithms/pstl/feature_test-2.cc: New test. * testsuite/25_algorithms/pstl/feature_test-3.cc: New test. * testsuite/25_algorithms/pstl/feature_test-4.cc: New test. * testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
This commit is contained in:
Jonathan Wakely
parent
e851aa1703
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2020-04-22 Jonathan Wakely <jwakely@redhat.com>
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* include/std/execution (__cpp_lib_execution): Define to indicate
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support for P0024R2 and P1001R2.
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* include/std/version (__cpp_lib_execution): Define.
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* testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
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defined by <algorithm>, move other tests to new tests ...
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* testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
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* testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
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* testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
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* testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
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* include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
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different values for C++17 and C++20, to indicate different feature
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sets. Update value for C++20 to indicate P1032R1 support.
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@ -50,6 +50,7 @@
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// Feature test macro for parallel algorithms
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# define __cpp_lib_parallel_algorithm 201603L
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# define __cpp_lib_execution 201902L
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#endif // C++17
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@ -127,6 +127,7 @@
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#define __cpp_lib_clamp 201603
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#define __cpp_lib_constexpr_char_traits 201611
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#define __cpp_lib_enable_shared_from_this 201603
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#define __cpp_lib_execution 201902L // FIXME: should be 201603L
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#define __cpp_lib_filesystem 201703
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#define __cpp_lib_gcd 201606
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#define __cpp_lib_gcd_lcm 201606
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@ -188,6 +189,7 @@
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#define __cpp_lib_array_constexpr 201811L
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#define __cpp_lib_assume_aligned 201811L
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#define __cpp_lib_bind_front 201907L
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// FIXME: #define __cpp_lib_execution 201902L
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#define __cpp_lib_integer_comparison_functions 202002L
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#define __cpp_lib_constexpr_algorithms 201806L
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#define __cpp_lib_constexpr_complex 201711L
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// Copyright (C) 2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-options "-std=gnu++17" }
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// { dg-do preprocess { target c++17 } }
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#include <numeric>
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#ifndef __cpp_lib_parallel_algorithm
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# error "Feature-test macro for parallel algorithms missing in <numeric>"
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#elif __cpp_lib_parallel_algorithm != 201603L
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# error "Feature-test macro for parallel algorithms has wrong value in <numeric>"
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#endif
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// Copyright (C) 2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-options "-std=gnu++17" }
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// { dg-do preprocess { target c++17 } }
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#include <execution>
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#ifndef __cpp_lib_execution
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# error "Feature-test macro for execution policies is missing in <execution>"
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#elif __cpp_lib_execution != 201902L
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# error "Feature-test macro for parallel algorithms has wrong value in <execution>"
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#endif
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// Neither SD-6 nor C++20 requires this macro to be defined in <execution>.
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#ifndef __cpp_lib_parallel_algorithm
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# error "Feature-test macro for parallel algorithms missing in <execution>"
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#elif __cpp_lib_parallel_algorithm != 201603L
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# error "Feature-test macro for parallel algorithms has wrong value in <execution>"
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#endif
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// Copyright (C) 2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-options "-std=gnu++17" }
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// { dg-do preprocess { target c++17 } }
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#include <version>
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#ifndef __cpp_lib_parallel_algorithm
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# error "Feature-test macro for parallel algorithms missing in <version>"
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#elif __cpp_lib_parallel_algorithm != 201603L
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# error "Feature-test macro for parallel algorithms has wrong value in <version>"
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#endif
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#ifndef __cpp_lib_execution
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# error "Feature-test macro for execution policies is missing in <version>"
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#elif __cpp_lib_execution != 201902L
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# error "Feature-test macro for parallel algorithms has wrong value in <version>"
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#endif
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// Copyright (C) 2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-options "-std=gnu++17" }
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// { dg-do preprocess { target c++17 } }
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#include <memory>
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// Neither SD-6 nor C++20 requires this macro to be defined in <memory>.
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#ifndef __cpp_lib_parallel_algorithm
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# error "Feature-test macro for parallel algorithms missing in <memory>"
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#elif __cpp_lib_parallel_algorithm != 201603L
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# error "Feature-test macro for parallel algorithms has wrong value in <memory>"
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#endif
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@ -19,32 +19,9 @@
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// { dg-do preprocess { target c++17 } }
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#include <algorithm>
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#ifndef __cpp_lib_parallel_algorithm
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# error "Feature-test macro for parallel algorithms missing"
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# error "Feature-test macro for parallel algorithms missing in <algorithm>"
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#elif __cpp_lib_parallel_algorithm != 201603L
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# error "Feature-test macro for parallel algorithms has wrong value in <algorithm>"
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#endif
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#include <numeric>
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#if __cpp_lib_parallel_algorithm != 201603L
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# error "Feature-test macro for parallel algorithms has wrong value in <numeric>"
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#endif
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#include <version>
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#if __cpp_lib_parallel_algorithm != 201603L
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# error "Feature-test macro for parallel algorithms has wrong value in <version>"
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#endif
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// The N4810 draft does not require the macro to be defined in <execution>.
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#include <memory>
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#if __cpp_lib_parallel_algorithm != 201603L
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# error "Feature-test macro for parallel algorithms has wrong value in <memory>"
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#endif
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// The N4810 draft does not require the macro to be defined in <execution>.
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// Include this last, because it will trigger the inclusion of TBB headers,
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// which then include <memory>, so we need to have already checked <memory>.
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#include <execution>
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#if __cpp_lib_parallel_algorithm != 201603L
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# error "Feature-test macro for parallel algorithms has wrong value in <execution>"
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#endif
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